Fire coal drying device for power plant
By using multi-layer drying mechanism, hot air components, turn-over components and vibrating components in the coal-fired drying device for power plants, the problems of coal accumulation and large area are solved, and efficient coal-fired drying is achieved Dry and small equipment layout.
Patent Information
- Application Number
- CN202420302030.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-19
AI Technical Summary
During the use of coal-fired drying equipment for existing power plants, the drying effect is poor due to coal accumulation problems, and the equipment covers a large area, which increases investment costs.
A coal-fired drying device including a multi-layer drying mechanism and a feed conveyor belt is designed, and hot air components, exhaust components and flip components are used to avoid material accumulation and spilling through the lead pipe and vibrating components, thereby improving the coal-fired Dispersibility and hot air contact effect.
It realizes efficient drying of coal, reduces the equipment footprint, improves the drying effect, and avoids material accumulation and heat loss.
Smart Images
Figure CN222279202U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy generation, in particular to a coal drying device for a power plant. Background Art
[0002] At present, power plants use coal combustion to convert it into electricity for power supply. Power plants generally dry the coal to evaporate the water in the coal slime. Drying equipment can increase the added value of coal after drying.
[0003] At present, most coal-fired ore is dried by hot air, where hot air flows through the water-containing material to raise its temperature and dehydrate it. When implementing it, one of the solutions that can be adopted is to lengthen the conveyor belt, so that the surface of the coal slime can have more contact time with the hot air to obtain heat and accelerate dehydration. However, the cost of this is that it requires a larger equipment footprint, which means that it requires increased investment.
[0004] To this end, Chinese patent CN218380348U provides a coal drying device for power plants, which realizes vertical drying of coal by means of two conveyor belts arranged upper and lower. This design can reduce the footprint of the equipment, but during use, the device cannot disperse the coal well due to the accumulation of coal during transportation, thereby reducing the drying effect of the coal. Utility Model Content
[0005] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes a coal drying device for power plants.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A coal-fired drying device for a power plant comprises a multi-layer drying mechanism and a feeding conveyor belt; the multiple groups of drying mechanisms are arranged in parallel with each other and the unloading end of the upper drying mechanism is located above the loading end of the lower drying mechanism, and the loading end of the top drying mechanism is located below the unloading end of the loading conveyor belt; the drying mechanism comprises a feeding conveyor belt, a drying box, a hot air component, a dehumidification component and a turning component; a drying box is provided on the feeding conveyor belt, and material ports are provided at both ends of the drying box to form a feeding port and a discharging port, a hot air component is provided on the drying box and the hot air component is connected to the inside of the drying box to realize the drying operation of the material on the feeding conveyor belt, a dehumidification component is also provided on the drying box and the hot air component is connected to the inside of the drying box to realize the dehumidification operation of the material on the feeding conveyor belt during the drying process, and a plurality of turning components are provided in the drying box to realize the turning operation of the material on the feeding conveyor belt, so that the material is fully dried.
[0008] Furthermore, the hot air component includes a hot air blower, a heat conducting pipe and a hot air duct; the hot air blower is arranged outside the drying box and is connected to a plurality of hot air ducts through the heat conducting pipe, the plurality of hot air ducts are all connected to the inside of the drying box, and a group of turning components is arranged between two adjacent hot air ducts.
[0009] Furthermore, the dehumidification component includes a dehumidification fan, a dehumidification duct and a dehumidification pipe; the dehumidification fan is arranged outside the drying box and is connected to three dehumidification pipes through the dehumidification duct. The three dehumidification pipes are connected to the interior of the drying box and are respectively located at the front end, middle end and end of the drying box to improve the dehumidification effect.
[0010] Furthermore, the material turning assembly includes a material turning shaft and a material turning rod; the material turning shaft is rotatably arranged in the drying box and is located between two adjacent hot air pipes, and a plurality of material turning rods are arranged on the material turning shaft.
[0011] Furthermore, the two material openings are both provided with curtains to reduce heat loss and improve the drying effect.
[0012] Furthermore, a feed pipe is provided between the two adjacent drying mechanisms to avoid the problem of material spillage during the feeding process. Both ends of the feed pipe are open and it is arranged at the unloading end of the upper feed conveyor belt to guide the material on the upper feed conveyor belt to the lower feed conveyor belt.
[0013] Furthermore, a vibration component is provided at the unloading end of the loading conveyor belt to avoid material accumulation during the loading process of the loading conveyor belt and affect the drying effect. The vibration component includes a unloading chute, a spring and a vibration motor; the unloading chute is tilted below the unloading end of the loading conveyor belt through a spring, the unloading end of the unloading chute is above the top feed conveyor belt and a vibration motor is installed at the bottom thereof so that the vibration motor can drive the unloading chute to complete the vibration unloading action of the material on the loading conveyor belt, so that the material is dispersed into the top feed conveyor belt.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model realizes the drying operation of the coal by a vertical drying method, occupies a small area, and at the same time, through the arrangement of the turning component, improves the dispersion effect of the coal in the transportation process, makes the coal fully contact with the hot air, and greatly improves the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a structural schematic diagram of the drying mechanism;
[0018] Figure 3 for Figure 2 A partial enlarged view of middle A;
[0019] Figure 4 It is a structural schematic diagram of the material turning component;
[0020] Figure 5 This is the installation diagram of the feed pipe;
[0021] Figure 6 This is a schematic diagram of the installation of the vibration material assembly;
[0022] Among them: 1. Drying mechanism; 11. Feed conveyor belt; 12. Drying box; 121. Material port; 122. Curtain; 13. Hot air assembly; 131. Hot air blower; 132. Heat pipe; 133. Hot air pipe; 14. Dehumidification assembly; 141. Dehumidification blower; 142. Dehumidification pipe; 143. Dehumidification pipe; 15. Material turning assembly; 151. Material turning shaft; 152. Material turning rod; 2. Loading conveyor belt; 3. Material guide pipe; 4. Material vibration assembly; 41. Material discharge chute; 42. Spring; 43. Vibration motor. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:
[0024] Embodiment 1:
[0025] See attached Figure 1 To Attachment Figure 4 As shown, a coal drying device for a power plant includes a multi-layer drying mechanism 1 and a feeding conveyor belt 2; the multiple drying mechanisms 1 are arranged in parallel with each other, and the unloading end of the upper drying mechanism 1 is above the loading end of the lower drying mechanism 1, and the loading end of the top drying mechanism 1 is below the unloading end of the loading conveyor belt 2; the drying mechanism 1 includes a feeding conveyor belt 11, a drying box 12, a hot air component 13, a dehumidification component 14 and a turning component 15; a drying box 12 is arranged on the feeding conveyor belt 11, and both ends of the drying box 12 are provided with a material port 121 To form a feed port 121 and a discharge port 121, the drying box 12 is provided with a hot air component 13 and the hot air component 13 is connected to the drying box 12 to realize the drying operation of the material on the feeding conveyor belt 11, the drying box 12 is also provided with a dehumidification component 14 and the hot air component 13 is connected to the drying box 12 to realize the dehumidification operation of the material on the feeding conveyor belt 11 during the drying process, and the drying box 12 is provided with a plurality of groups of turning components 15 to realize the turning operation of the material on the feeding conveyor belt 11, so that the material is fully dried.
[0026] Specifically, the hot air assembly 13 includes a hot air blower 131, a heat conducting pipe 132 and a hot air pipe 133; the hot air blower 131 is arranged outside the drying box 12 and is connected to a plurality of hot air pipes 133 through the heat conducting pipe 132, the plurality of hot air pipes 133 are all connected to the inside of the drying box 12, and a group of turning components 15 is arranged between two adjacent hot air pipes 133.
[0027] Specifically, the dehumidification component 14 includes a dehumidification fan 141, a dehumidification duct 142 and a dehumidification duct 143; the dehumidification fan 141 is arranged outside the drying box 12 and is connected to three dehumidification ducts 143 through the dehumidification duct 142. The three dehumidification ducts 143 are connected to the interior of the drying box 12 and are respectively located at the front end, middle end and end of the drying box 12 to improve the dehumidification effect.
[0028] Specifically, the turning assembly 15 includes a turning shaft 151 and a turning rod 152; the turning shaft 151 is rotatably arranged in the drying box 12 and is located between two adjacent hot air pipes 133, and a plurality of turning rods 152 are arranged on the turning shaft 151; during implementation, the turning assembly 15 is connected to a driving assembly (not shown) arranged outside the drying box 12 so that the driving assembly can drive the turning assembly 15 to rotate. The driving assembly is an existing conventional technology, which is a belt transmission or a chain transmission, and this application will not elaborate on it.
[0029] To improve the drying effect, two material ports 121 are provided with curtains 122 to reduce heat loss.
[0030] Embodiment 2:
[0031] There is a height difference between two adjacent drying mechanisms 1. To avoid the problem of material spillage during the feeding process, refer to the attached Figure 5 As shown, the present application provides a feed guide pipe 3 between two adjacent drying mechanisms 1 , and both ends of the feed guide pipe 3 are open and provided at the unloading end of the upper feed conveyor belt 11 to guide the material on the upper feed conveyor belt 11 to the lower feed conveyor belt 11 .
[0032] Embodiment 3:
[0033] In order to consider the feeding effect of the feeding conveyor belt 2, to avoid the accumulation of materials during the feeding process of the feeding conveyor belt 2 and affect the drying effect, for details, refer to the attached Figure 6As shown, a vibration component 4 is provided at the unloading end of the loading conveyor belt 2, and the vibration component 4 includes a unloading chute 41, a spring 42 and a vibration motor 43; the unloading chute 41 is tiltedly arranged below the unloading end of the loading conveyor belt 2 through the spring 42, and the unloading end of the unloading chute 41 is above the top feed conveyor belt 11 and a vibration motor 43 is installed at the bottom thereof so that the vibration motor 43 can drive the unloading chute 41 to complete the vibration unloading action of the material on the loading conveyor belt 2, so that the material is dispersed into the top feed conveyor belt 11.
[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A coal drying device for a power plant, characterized in that: It comprises a plurality of drying mechanisms (1) and a feeding conveyor belt (2); the plurality of drying mechanisms (1) are arranged in parallel with each other, and the unloading end of the upper drying mechanism (1) is located above the loading end of the lower drying mechanism (1), and the loading end of the top drying mechanism (1) is located below the unloading end of the feeding conveyor belt (2); The drying mechanism (1) comprises a material conveyor belt (11), a drying box (12), a hot air component (13), a moisture removal component (14) and a material turning component (15); A drying box (12) is provided on the feeding conveyor belt (11), and both ends of the drying box (12) are provided with material ports (121) to form a material inlet (121) and a material outlet (121); A hot air component (13) is provided on the drying box (12), and the hot air component (13) is connected to the interior of the drying box (12); The drying box (12) is also provided with a dehumidification component (14) and a hot air component (13) is connected to the interior of the drying box (12); A plurality of material turning components (15) are arranged in the drying box (12).
2. A coal drying device for a power plant according to claim 1, characterized in that: The hot air component (13) comprises a hot air blower (131), a heat conducting pipe (132) and a hot air pipe (133); The hot air blower (131) is arranged outside the drying box (12) and is connected to a plurality of hot air pipes (133) via a heat conducting pipe (132); the plurality of hot air pipes (133) are all connected to the inside of the drying box (12), and a group of material turning components (15) is arranged between two adjacent hot air pipes (133).
3. A coal drying device for power plants according to claim 2, characterized in that: The dehumidification component (14) comprises a dehumidification fan (141), a moisture guide pipe (142) and a dehumidification pipe (143); The dehumidification fan (141) is arranged outside the drying box (12) and is connected to three dehumidification pipes (143) through a dehumidification pipe (142). The three dehumidification pipes (143) are connected to the interior of the drying box (12) and are respectively located at the front end, middle end and end of the interior of the drying box (12).
4. A coal drying device for power plants according to claim 2, characterized in that: The material turning assembly (15) comprises a material turning shaft (151) and a material turning rod (152); The turning shaft (151) is rotatably arranged in the drying box (12) and between two adjacent hot air pipes (133), and a plurality of turning rods (152) are arranged on the turning shaft (151).
5. The coal drying device for power plant according to claim 1, characterized in that: The two material openings (121) are both provided with blocking curtains (122).
6. The coal drying device for power plant according to claim 1, characterized in that: A material introduction pipe (3) is arranged between the two adjacent drying mechanisms (1), and the two ends of the material introduction pipe (3) are open and arranged at the unloading end of the upper material feeding conveyor belt (11).
7. The coal drying device for power plant according to claim 1, characterized in that: The unloading end of the loading conveyor belt (2) is provided with a vibrating assembly (4), and the vibrating assembly (4) comprises a unloading trough (41), a spring (42) and a vibrating motor (43); The material discharge chute (41) is tiltedly arranged below the material discharge end of the material upper conveyor belt (2) through a spring (42); the material discharge end of the material discharge chute (41) is located above the top feed conveyor belt (11) and a vibration motor (43) is installed at the bottom thereof.